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RF but
Feb 21, 2018 23:27:32 GMT -5
Post by spiceman on Feb 21, 2018 23:27:32 GMT -5
I sketched a picture using pencils, Soft to hard lead. I framed it and put it up on the wall. After a couple days the drawing started to disappear and the only part remaining was the places that was drawn using the harder lead. So, I took the picture down after 2days on the floor, the drawing started to reappear. could RF cause that to happen? It sounds crazy but why did that happen?
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Post by Pat on Feb 22, 2018 0:02:13 GMT -5
RF. Could not do that.
Might have been the angle of vision.
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RF but
Feb 22, 2018 0:39:06 GMT -5
Post by spiceman on Feb 22, 2018 0:39:06 GMT -5
Well, it wasn't the angle of vision, I don't think because one of the people I showed put it under a light a many angles and he said, I'm not sure. The killer is out of all the people I ask, 1/2 said RF and the others said I don't know. This site has lots of smart people and I figured some might know.
Thank you
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RF but
Feb 22, 2018 0:41:29 GMT -5
Post by Pat on Feb 22, 2018 0:41:29 GMT -5
Can you post the picture?
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Post by amygdule on Feb 22, 2018 12:25:57 GMT -5
Maybe it's the RH affecting the paper.
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Post by Rockoonz on Feb 22, 2018 13:51:54 GMT -5
The hardness of graphite is determined by the addition of clay. Less clay = softer / softer = darker lines. Probably irrelevant to your mystery but maybe the info will help someone more knowledgeable concerning photo-reactivity. Or whatever it is.
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unclesoska
freely admits to licking rocks
All those jade boulders tossed in search of gold!
Member since February 2011
Posts: 934
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Post by unclesoska on Feb 22, 2018 19:09:43 GMT -5
Dumb question- What is RF? May have lotsa smart folk here, but I'm not acquainted w/ the mind readers of the group.
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RF but
Feb 22, 2018 19:53:11 GMT -5
Post by spiceman on Feb 22, 2018 19:53:11 GMT -5
Dumb question- What is RF? May have lotsa smart folk here, but I'm not acquainted w/ the mind readers of the group. Sorry, but no wuestion is dumb. RF- radio frequency
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RF but
Feb 22, 2018 19:55:31 GMT -5
Post by spiceman on Feb 22, 2018 19:55:31 GMT -5
Good answer Thinking out side the box.
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RF but
Feb 22, 2018 20:00:14 GMT -5
Post by spiceman on Feb 22, 2018 20:00:14 GMT -5
The big reason I want to know, if it is RF why does it show in that area? Also, can RF be bad for your health? Some people know why i am interested In the answer.
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Post by Pat on Feb 22, 2018 22:14:52 GMT -5
If RF is at too high a level, it would be bad for your health.
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Post by mohs on Feb 23, 2018 9:10:26 GMT -5
u need to try and reduplicate the situation under controlled conditions not sure how to do that more theoretician than a practitioner moslty
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AzRockGeek
has rocks in the head
Member since September 2016
Posts: 635
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Post by AzRockGeek on Feb 23, 2018 9:51:08 GMT -5
Sounds like more of a humidity issue to me. Was near an air vent?
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Post by rockjunquie on Feb 23, 2018 10:43:37 GMT -5
I can almost guarantee you that it was staic electricity that lifted the softer lead. We were taught in art class that that could happen and that is why we used a spray fixative over charcoal- especially if it were to be under glass, which sets up a static field. Why I don't know, but it happens. Have you ever seen a charcoal with dust on the inside of the glass? I have. Its where the charcoal or lead was lifted.
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AzRockGeek
has rocks in the head
Member since September 2016
Posts: 635
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Post by AzRockGeek on Feb 23, 2018 10:48:11 GMT -5
I asked a RF Guru and my work if the RF could possibly have any effect on a drawing, he said ONLY if the drawing media is ferrite based. RF would not have any effect on graphite.
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RF but
Feb 24, 2018 23:42:40 GMT -5
Post by spiceman on Feb 24, 2018 23:42:40 GMT -5
I asked a RF Guru and my work if the RF could possibly have any effect on a drawing, he said ONLY if the drawing media is ferrite based. RF would not have any effect on graphite. Thanks, that is a good answer. but now I want to know what happened. I need to try and repeat it and take pictures of the drawing before and after. I moved the hanger from that location but I now here it should be.
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RF but
Feb 24, 2018 23:46:04 GMT -5
Post by spiceman on Feb 24, 2018 23:46:04 GMT -5
Sounds like more of a humidity issue to me. Was near an air vent? The humidity is very low in the winter time and we were going thru a cold spell.
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minerken
Cave Dweller
Member since August 2013
Posts: 466
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Post by minerken on Feb 24, 2018 23:57:48 GMT -5
low humidity and cold that would reinforce @rockjunquies 's static electricity description.
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RF but
Feb 26, 2018 2:10:51 GMT -5
Post by spiceman on Feb 26, 2018 2:10:51 GMT -5
Yes, it does. I need to look what's on the other side of the wall. The place is old and the walls are solid plaster, no drywall.
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RF but
Feb 26, 2018 2:22:35 GMT -5
Post by spiceman on Feb 26, 2018 2:22:35 GMT -5
Ok, I was moving around pictures in that area and noticed a dusting of dark spider webs. That could be the pencil lead lifting off. But, and there is always a BUT. The graphite returned to the check areas after I removed the drawing from the wall. A couple round areas about as big as a quarter are thin or void of graphite. It's getting crazier.
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